Air-chamber



(No Model.)

J. F. REED. AIR CHAMBER.

No 571,243. PatentedNov. 10, 1896.

UNITE STATES TENT FFICE.

JAMES F. REED, OF MILLVALE, PENNSYLVANIA.

AIR-CHAMBER.

SPECIFICATION forming part of Letters Patent No. 571,243, dated November10, 1896.

' Application filed danuary 28,1896. Serial No. 576,563. (No model.)

To all whom it may concern:

Be it known that I, J F. REED, a citizen of the United States, residingat Millvale Borough, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inAir-Chambers; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form a part of this specification.

My invention has relation to air-chambers for water-pipes, and has forits object the provision of novel means for preventing the objectionablejarring and noise which is caused in water-supply pipes and fixtures ofthe ordinary kind when the flow of water is suddenly cut off by closinga cock or valve.

My invention consists in the provision of an air-chamber adapted to beapplied to a water-pipe and so constructed and arranged that a body ofair will be always retained in the chamber, so as to act as a cushionand prevent any jarring or noise when the flow of water is turned off atthe discharge end of the pipe.-

My invention further consists in the provision of an air-chamber ofnovel construction wherein a body of air is constantly maintained and inwhich the water entering the chamber will impinge against an interiorwall or partition instead of being projected directly into the airwithin the chamber, thusavoiding the gradual discharge of air andimpairment of the functions of the chamber, which inevitably resultswhen there is no such provision.

Referring to the accompanying drawings, Figure 1 is a verticaltransverse sectional view of an air-chamber constructed according to myinvention. Fig. 2 is a vertical sectional View taken at right angles tothe view shown in Fig. 1, and Fig. 3 is a plan view looking at the lowerend of the chamber.

A designates the inlet-opening, and B the body of the chamber, which ispreferably of the form shown in the drawings. A partition composed of asemicircular top or dome C and depending sides D D is cast integral withthe body of the air-chamber, and the exit-opening is at E, being withinand concentric with dome O.

The depending sides I) D of the partition extend toward theinlet-opening of the chamher, and the space between them forms acontinuation of the water-passage, but below the ends of the dependingsides are left side passages F F, which afford entrance for water intothe air-chamber proper. The water entering the opening A passes upbetween the depending sides D D and impinges forcibly against the dome0, while it also rises through the side passages F F, though withoutnoticeable ebullition, and compresses the air in the space Gr above andaround the partition.

In an air-chamber constructed as above described a body of air willalways be maintained in the space G, being out of contact with thedirectly-flowing body of water between the inlet and exit openings andremains undisturbed by the sudden rush of water that ensues when thecooks or faucets connected with the exit-opening are turned on, while atthe same time the air will act as a cushion to receive the shock whichensues when the water is turned off and will effectually prevent thedisagreeable noises and delterious jarring common in ordinarywatersupply fixtures.

Having described my invention, I claim- 1. An air-chamber forwater-supply pipes consisting of an exterior shell, having water inletand outlet openings, the outlet-opening being at right angles to theinlet-opening and an interior wall or partition extending from the frontto the back of the exterior shell, said partition being concentric withthe outlet-opening and having depending sides extending to near theinletopening, substantially as described.

2. An air-chamber for water-supply pipes consisting of an exterior shellhaving flattened front and back walls, water inlet and outlet openings,the outlet-opening being at right angles to the inlet-opening, and an interior wall or partition extending from the front to the back of theexterior shell said partition being circular in cross-section andconcentric with the outlet-opening and having straight depending sidesextending to near the inlet-opening substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES F. REED.

Witnesses:

WM. K. GRAY, FRANCIS J. TORRANCE.

